CVE-2024-26974 (GCVE-0-2024-26974)
Vulnerability from cvelistv5
Published
2024-05-01 05:20
Modified
2026-08-05 11:28
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: crypto: qat - resolve race condition during AER recovery During the PCI AER system's error recovery process, the kernel driver may encounter a race condition with freeing the reset_data structure's memory. If the device restart will take more than 10 seconds the function scheduling that restart will exit due to a timeout, and the reset_data structure will be freed. However, this data structure is used for completion notification after the restart is completed, which leads to a UAF bug. This results in a KFENCE bug notice. BUG: KFENCE: use-after-free read in adf_device_reset_worker+0x38/0xa0 [intel_qat] Use-after-free read at 0x00000000bc56fddf (in kfence-#142): adf_device_reset_worker+0x38/0xa0 [intel_qat] process_one_work+0x173/0x340 To resolve this race condition, the memory associated to the container of the work_struct is freed on the worker if the timeout expired, otherwise on the function that schedules the worker. The timeout detection can be done by checking if the caller is still waiting for completion or not by using completion_done() function.
References
Impacted products
Vendor Product Version
Linux Linux Version: d8cba25d2c68992a6e7c1d329b690a9ebe01167d
Version: d8cba25d2c68992a6e7c1d329b690a9ebe01167d
Version: d8cba25d2c68992a6e7c1d329b690a9ebe01167d
Version: d8cba25d2c68992a6e7c1d329b690a9ebe01167d
Version: d8cba25d2c68992a6e7c1d329b690a9ebe01167d
Version: d8cba25d2c68992a6e7c1d329b690a9ebe01167d
Version: d8cba25d2c68992a6e7c1d329b690a9ebe01167d
Version: d8cba25d2c68992a6e7c1d329b690a9ebe01167d
Version: d8cba25d2c68992a6e7c1d329b690a9ebe01167d
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-26974",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-05-28T17:47:45.425638Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-04T17:49:36.315Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T00:21:05.752Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/daba62d9eeddcc5b1081be7d348ca836c83c59d7"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/8e81cd58aee14a470891733181a47d123193ba81"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/d03092550f526a79cf1ade7f0dfa74906f39eb71"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/4ae5a97781ce7d6ecc9c7055396535815b64ca4f"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/226fc408c5fcd23cc4186f05ea3a09a7a9aef2f7"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/8a5a7611ccc7b1fba8d933a9f22a2e76859d94dc"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/0c2cf5142bfb634c0ef0a1a69cdf37950747d0be"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/bb279ead42263e9fb09480f02a4247b2c287d828"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/7d42e097607c4d246d99225bf2b195b6167a210c"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "affected": [
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "*",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-12T11:50:58.844Z",
          "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
          "shortName": "siemens-SADP"
        },
        "references": [
          {
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
          }
        ],
        "x_adpType": "supplier"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/crypto/intel/qat/qat_common/adf_aer.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "daba62d9eeddcc5b1081be7d348ca836c83c59d7",
              "status": "affected",
              "version": "d8cba25d2c68992a6e7c1d329b690a9ebe01167d",
              "versionType": "git"
            },
            {
              "lessThan": "8e81cd58aee14a470891733181a47d123193ba81",
              "status": "affected",
              "version": "d8cba25d2c68992a6e7c1d329b690a9ebe01167d",
              "versionType": "git"
            },
            {
              "lessThan": "d03092550f526a79cf1ade7f0dfa74906f39eb71",
              "status": "affected",
              "version": "d8cba25d2c68992a6e7c1d329b690a9ebe01167d",
              "versionType": "git"
            },
            {
              "lessThan": "4ae5a97781ce7d6ecc9c7055396535815b64ca4f",
              "status": "affected",
              "version": "d8cba25d2c68992a6e7c1d329b690a9ebe01167d",
              "versionType": "git"
            },
            {
              "lessThan": "226fc408c5fcd23cc4186f05ea3a09a7a9aef2f7",
              "status": "affected",
              "version": "d8cba25d2c68992a6e7c1d329b690a9ebe01167d",
              "versionType": "git"
            },
            {
              "lessThan": "8a5a7611ccc7b1fba8d933a9f22a2e76859d94dc",
              "status": "affected",
              "version": "d8cba25d2c68992a6e7c1d329b690a9ebe01167d",
              "versionType": "git"
            },
            {
              "lessThan": "0c2cf5142bfb634c0ef0a1a69cdf37950747d0be",
              "status": "affected",
              "version": "d8cba25d2c68992a6e7c1d329b690a9ebe01167d",
              "versionType": "git"
            },
            {
              "lessThan": "bb279ead42263e9fb09480f02a4247b2c287d828",
              "status": "affected",
              "version": "d8cba25d2c68992a6e7c1d329b690a9ebe01167d",
              "versionType": "git"
            },
            {
              "lessThan": "7d42e097607c4d246d99225bf2b195b6167a210c",
              "status": "affected",
              "version": "d8cba25d2c68992a6e7c1d329b690a9ebe01167d",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/crypto/intel/qat/qat_common/adf_aer.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.17"
            },
            {
              "lessThan": "3.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.312",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.274",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.215",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.154",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.84",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.24",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.7.*",
              "status": "unaffected",
              "version": "6.7.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.8.*",
              "status": "unaffected",
              "version": "6.8.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.9",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.312",
                  "versionStartIncluding": "3.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.274",
                  "versionStartIncluding": "3.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.215",
                  "versionStartIncluding": "3.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.154",
                  "versionStartIncluding": "3.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.84",
                  "versionStartIncluding": "3.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.24",
                  "versionStartIncluding": "3.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.7.12",
                  "versionStartIncluding": "3.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.8.3",
                  "versionStartIncluding": "3.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.9",
                  "versionStartIncluding": "3.17",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: qat - resolve race condition during AER recovery\n\nDuring the PCI AER system\u0027s error recovery process, the kernel driver\nmay encounter a race condition with freeing the reset_data structure\u0027s\nmemory. If the device restart will take more than 10 seconds the function\nscheduling that restart will exit due to a timeout, and the reset_data\nstructure will be freed. However, this data structure is used for\ncompletion notification after the restart is completed, which leads\nto a UAF bug.\n\nThis results in a KFENCE bug notice.\n\n  BUG: KFENCE: use-after-free read in adf_device_reset_worker+0x38/0xa0 [intel_qat]\n  Use-after-free read at 0x00000000bc56fddf (in kfence-#142):\n  adf_device_reset_worker+0x38/0xa0 [intel_qat]\n  process_one_work+0x173/0x340\n\nTo resolve this race condition, the memory associated to the container\nof the work_struct is freed on the worker if the timeout expired,\notherwise on the function that schedules the worker.\nThe timeout detection can be done by checking if the caller is\nstill waiting for completion or not by using completion_done() function."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The vulnerable `adf_slot_reset()` runs in the host kernel\u0027s PCIe AER/EEH error-recovery machinery for the local QAT accelerator; there is no network- or adjacent-network-facing path to `drivers/crypto/intel/qat/qat_common/adf_aer.c`. The attacker must be local to the host \u2014 a co-resident guest/VFIO holder of a QAT function on the same PCIe hierarchy, or a local actor able to drive AER recovery.\nAC:L - The attacker controls the triggering event (the PCIe error that starts recovery), and the losing side of the race is not a narrow window \u2014 a device that has just taken an uncorrectable error leaves MMIO reads returning all-ones, so `adf_dev_up()` runs every poll loop to its full timeout (5 s admin-message poll plus 3 s firmware-auth waits) and deterministically exceeds the caller\u0027s 10-second `wait_for_completion_timeout`. The UAF was observed occurring naturally in the field via KFENCE, confirming the window is routinely hit.\nPR:L - SR-IOV VF assignment is the mainstream QAT deployment model, and a tenant guest or VFIO-granted user holding a QAT function can make it signal an uncorrectable error; `pci_walk_bridge()` then broadcasts `slot_reset` across the port\u0027s subordinate bus, invoking the host PF\u0027s `adf_slot_reset()` \u2014 no host root needed. Unprivileged local users can additionally drive arbitrary traffic through the device via AF_ALG, which dispatches to the QAT skcipher/aead implementations.\nUI:N - The reset worker and the timing-out caller both run entirely within kernel context once the PCIe error is signalled; no victim action, mount, or file open is required.\nS:U - The freed `adf_reset_dev_data` and the corruption caused by the stale `complete()` are both host kernel heap objects under the same security authority; no hypervisor, IOMMU, or sandbox boundary is itself bypassed by the flaw.\nC:H - The worker performs a use-after-free read of `reset_data-\u003emode` and dereferences `x-\u003ewait.task_list` out of the freed ~80-byte `kmalloc-96` object, a cache an attacker can reliably reoccupy with sprayed objects (msg_msg, xattr, etc.), turning the stale reference into a controlled read of kernel memory.\nI:H - `complete()` on the freed object writes into it \u2014 taking a raw spinlock, incrementing `x-\u003edone`, and running `swake_up_locked()` over an attacker-groomed wait list, yielding `wake_up_process()` on a controlled task pointer; because `ADF_DEV_RESET_ASYNC == 0`, a zeroed reallocation of the slot also produces a second `kfree()` on the already-freed pointer, a classic double-free route to an arbitrary write.\nA:H - The use-after-free and potential double free corrupt the slab allocator, producing KASAN/KFENCE splats and kernel panics (immediate under `panic_on_warn`), and the reset path additionally hits `WARN(1, \"QAT: device restart failed. Device is unusable\")`, leaving the crypto accelerator dead."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T11:28:47.324Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/daba62d9eeddcc5b1081be7d348ca836c83c59d7"
        },
        {
          "url": "https://git.kernel.org/stable/c/8e81cd58aee14a470891733181a47d123193ba81"
        },
        {
          "url": "https://git.kernel.org/stable/c/d03092550f526a79cf1ade7f0dfa74906f39eb71"
        },
        {
          "url": "https://git.kernel.org/stable/c/4ae5a97781ce7d6ecc9c7055396535815b64ca4f"
        },
        {
          "url": "https://git.kernel.org/stable/c/226fc408c5fcd23cc4186f05ea3a09a7a9aef2f7"
        },
        {
          "url": "https://git.kernel.org/stable/c/8a5a7611ccc7b1fba8d933a9f22a2e76859d94dc"
        },
        {
          "url": "https://git.kernel.org/stable/c/0c2cf5142bfb634c0ef0a1a69cdf37950747d0be"
        },
        {
          "url": "https://git.kernel.org/stable/c/bb279ead42263e9fb09480f02a4247b2c287d828"
        },
        {
          "url": "https://git.kernel.org/stable/c/7d42e097607c4d246d99225bf2b195b6167a210c"
        }
      ],
      "title": "crypto: qat - resolve race condition during AER recovery",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-26974",
    "datePublished": "2024-05-01T05:20:14.163Z",
    "dateReserved": "2024-02-19T14:20:24.203Z",
    "dateUpdated": "2026-08-05T11:28:47.324Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/daba62d9eeddcc5b1081be7d348ca836c83c59d7\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/8e81cd58aee14a470891733181a47d123193ba81\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/d03092550f526a79cf1ade7f0dfa74906f39eb71\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/4ae5a97781ce7d6ecc9c7055396535815b64ca4f\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/226fc408c5fcd23cc4186f05ea3a09a7a9aef2f7\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/8a5a7611ccc7b1fba8d933a9f22a2e76859d94dc\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/0c2cf5142bfb634c0ef0a1a69cdf37950747d0be\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/bb279ead42263e9fb09480f02a4247b2c287d828\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/7d42e097607c4d246d99225bf2b195b6167a210c\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T00:21:05.752Z\"}}, {\"affected\": [{\"vendor\": \"Siemens\", \"product\": \"SIMATIC S7-1500 TM MFP - GNU/Linux subsystem\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"*\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}], \"x_adpType\": \"supplier\", \"references\": [{\"url\": \"https://cert-portal.siemens.com/productcert/html/ssa-265688.html\"}], \"providerMetadata\": {\"orgId\": \"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\", \"shortName\": \"siemens-SADP\", \"dateUpdated\": \"2026-05-12T11:50:58.844Z\"}}, {\"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-26974\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-05-28T17:47:45.425638Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-05-28T17:47:50.370Z\"}, \"title\": \"CISA ADP Vulnrichment\"}], \"cna\": {\"title\": \"crypto: qat - resolve race condition during AER recovery\", \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 7.8, \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"AV:L - The vulnerable `adf_slot_reset()` runs in the host kernel\u0027s PCIe AER/EEH error-recovery machinery for the local QAT accelerator; there is no network- or adjacent-network-facing path to `drivers/crypto/intel/qat/qat_common/adf_aer.c`. The attacker must be local to the host \\u2014 a co-resident guest/VFIO holder of a QAT function on the same PCIe hierarchy, or a local actor able to drive AER recovery.\\nAC:L - The attacker controls the triggering event (the PCIe error that starts recovery), and the losing side of the race is not a narrow window \\u2014 a device that has just taken an uncorrectable error leaves MMIO reads returning all-ones, so `adf_dev_up()` runs every poll loop to its full timeout (5 s admin-message poll plus 3 s firmware-auth waits) and deterministically exceeds the caller\u0027s 10-second `wait_for_completion_timeout`. The UAF was observed occurring naturally in the field via KFENCE, confirming the window is routinely hit.\\nPR:L - SR-IOV VF assignment is the mainstream QAT deployment model, and a tenant guest or VFIO-granted user holding a QAT function can make it signal an uncorrectable error; `pci_walk_bridge()` then broadcasts `slot_reset` across the port\u0027s subordinate bus, invoking the host PF\u0027s `adf_slot_reset()` \\u2014 no host root needed. Unprivileged local users can additionally drive arbitrary traffic through the device via AF_ALG, which dispatches to the QAT skcipher/aead implementations.\\nUI:N - The reset worker and the timing-out caller both run entirely within kernel context once the PCIe error is signalled; no victim action, mount, or file open is required.\\nS:U - The freed `adf_reset_dev_data` and the corruption caused by the stale `complete()` are both host kernel heap objects under the same security authority; no hypervisor, IOMMU, or sandbox boundary is itself bypassed by the flaw.\\nC:H - The worker performs a use-after-free read of `reset_data-\u003emode` and dereferences `x-\u003ewait.task_list` out of the freed ~80-byte `kmalloc-96` object, a cache an attacker can reliably reoccupy with sprayed objects (msg_msg, xattr, etc.), turning the stale reference into a controlled read of kernel memory.\\nI:H - `complete()` on the freed object writes into it \\u2014 taking a raw spinlock, incrementing `x-\u003edone`, and running `swake_up_locked()` over an attacker-groomed wait list, yielding `wake_up_process()` on a controlled task pointer; because `ADF_DEV_RESET_ASYNC == 0`, a zeroed reallocation of the slot also produces a second `kfree()` on the already-freed pointer, a classic double-free route to an arbitrary write.\\nA:H - The use-after-free and potential double free corrupt the slab allocator, producing KASAN/KFENCE splats and kernel panics (immediate under `panic_on_warn`), and the reset path additionally hits `WARN(1, \\\"QAT: device restart failed. Device is unusable\\\")`, leaving the crypto accelerator dead.\"}]}], \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"d8cba25d2c68992a6e7c1d329b690a9ebe01167d\", \"lessThan\": \"daba62d9eeddcc5b1081be7d348ca836c83c59d7\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"d8cba25d2c68992a6e7c1d329b690a9ebe01167d\", \"lessThan\": \"8e81cd58aee14a470891733181a47d123193ba81\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"d8cba25d2c68992a6e7c1d329b690a9ebe01167d\", \"lessThan\": \"d03092550f526a79cf1ade7f0dfa74906f39eb71\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"d8cba25d2c68992a6e7c1d329b690a9ebe01167d\", \"lessThan\": \"4ae5a97781ce7d6ecc9c7055396535815b64ca4f\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"d8cba25d2c68992a6e7c1d329b690a9ebe01167d\", \"lessThan\": \"226fc408c5fcd23cc4186f05ea3a09a7a9aef2f7\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"d8cba25d2c68992a6e7c1d329b690a9ebe01167d\", \"lessThan\": \"8a5a7611ccc7b1fba8d933a9f22a2e76859d94dc\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"d8cba25d2c68992a6e7c1d329b690a9ebe01167d\", \"lessThan\": \"0c2cf5142bfb634c0ef0a1a69cdf37950747d0be\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"d8cba25d2c68992a6e7c1d329b690a9ebe01167d\", \"lessThan\": \"bb279ead42263e9fb09480f02a4247b2c287d828\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"d8cba25d2c68992a6e7c1d329b690a9ebe01167d\", \"lessThan\": \"7d42e097607c4d246d99225bf2b195b6167a210c\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/crypto/intel/qat/qat_common/adf_aer.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"3.17\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"3.17\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.19.312\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.274\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.215\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.154\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.84\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.24\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.7.12\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.7.*\"}, {\"status\": \"unaffected\", \"version\": \"6.8.3\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.8.*\"}, {\"status\": \"unaffected\", \"version\": \"6.9\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/crypto/intel/qat/qat_common/adf_aer.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/daba62d9eeddcc5b1081be7d348ca836c83c59d7\"}, {\"url\": \"https://git.kernel.org/stable/c/8e81cd58aee14a470891733181a47d123193ba81\"}, {\"url\": \"https://git.kernel.org/stable/c/d03092550f526a79cf1ade7f0dfa74906f39eb71\"}, {\"url\": \"https://git.kernel.org/stable/c/4ae5a97781ce7d6ecc9c7055396535815b64ca4f\"}, {\"url\": \"https://git.kernel.org/stable/c/226fc408c5fcd23cc4186f05ea3a09a7a9aef2f7\"}, {\"url\": \"https://git.kernel.org/stable/c/8a5a7611ccc7b1fba8d933a9f22a2e76859d94dc\"}, {\"url\": \"https://git.kernel.org/stable/c/0c2cf5142bfb634c0ef0a1a69cdf37950747d0be\"}, {\"url\": \"https://git.kernel.org/stable/c/bb279ead42263e9fb09480f02a4247b2c287d828\"}, {\"url\": \"https://git.kernel.org/stable/c/7d42e097607c4d246d99225bf2b195b6167a210c\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncrypto: qat - resolve race condition during AER recovery\\n\\nDuring the PCI AER system\u0027s error recovery process, the kernel driver\\nmay encounter a race condition with freeing the reset_data structure\u0027s\\nmemory. If the device restart will take more than 10 seconds the function\\nscheduling that restart will exit due to a timeout, and the reset_data\\nstructure will be freed. However, this data structure is used for\\ncompletion notification after the restart is completed, which leads\\nto a UAF bug.\\n\\nThis results in a KFENCE bug notice.\\n\\n  BUG: KFENCE: use-after-free read in adf_device_reset_worker+0x38/0xa0 [intel_qat]\\n  Use-after-free read at 0x00000000bc56fddf (in kfence-#142):\\n  adf_device_reset_worker+0x38/0xa0 [intel_qat]\\n  process_one_work+0x173/0x340\\n\\nTo resolve this race condition, the memory associated to the container\\nof the work_struct is freed on the worker if the timeout expired,\\notherwise on the function that schedules the worker.\\nThe timeout detection can be done by checking if the caller is\\nstill waiting for completion or not by using completion_done() function.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.312\", \"versionStartIncluding\": \"3.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.274\", \"versionStartIncluding\": \"3.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.215\", \"versionStartIncluding\": \"3.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.154\", \"versionStartIncluding\": \"3.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.84\", \"versionStartIncluding\": \"3.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.24\", \"versionStartIncluding\": \"3.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.7.12\", \"versionStartIncluding\": \"3.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8.3\", \"versionStartIncluding\": \"3.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.9\", \"versionStartIncluding\": \"3.17\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-08-05T11:28:47.324Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-26974\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-05T11:28:47.324Z\", \"dateReserved\": \"2024-02-19T14:20:24.203Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-01T05:20:14.163Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.